
The Best Mug Warmer Doesn’t Need a Souped-Up Coaster to Stay Hot
It’s built to insulate 90 minutes of multitasking.
It’s built to insulate 90 minutes of multitasking.
One zips from firm to cushy in seconds.
Fill power is the term to know.
They aren’t just for trapping heat.
That wonky shape is the key.